Process of making ceramic ware



Feb. 7,1939. F. G. MONTGOMERY PR'ocEss OF MAKING CERAMIC WARE Filed Jan. 7, 1938 'INVENTOR ATTORI Patented Feb. 7, 1939 I I UNITED STATES PATENT OFFICE PROCESS or MAKING CERAMIC WARE Frederick G. Montgomery, Westfield, N. J assignor to Ekstrand Manufacturing 00., Inc., a corporation of New York Application January 7, 1938, Serial No. 183,746

2 Claims. (Cl. 18-60) My invention relates to ceramic wares. material and reveals the insignia in intaglio The object of my invention is to provide a proceffect, and thereafter the materials are allowed ess whereby articles made of ceramic-ware mato harden by exposure to the atmosphere or may terials may be embellished. be baked in the usual manner.

A further object of my invention is to provide By reason of the central mass being formed on an article of manufacture made of ceramic maa plane above that of the bottom of the dish, the terial formed to provide a dish such as an ash-tray coating on the upper side thereof may be removed in which is formed depressions and elevations without danger of injury to the coating which relative to the plane of or general inner surface covers the rest of the article and the operation of the dish to provide intaglio effects such as of removing the coating from the top of the in letters or insignia which appears in the color of article is facilitated, and also the ornamental the base material or the color of the coating effect is enhanced and the dish strengthened.

material, or a color of a third material differing As shown in Figures 1 and 2, the insignia apfrom that of the first two and used in combinapears in the color of the coating material, whereas 13 tion therewith to provide a three tone effect. in Figure 3 it appears in the color of the base 15 Referring to the drawing which forms a part material. of the present application; As illustrated in Figure 4, instead of the in- Fig. 1 is a plan view of a dish such as an ashsignia appearing in the color of the prime coating tray, made of molded ceramic material and dismaterial, I remove the prime coating material,

80 closing a central raised mass of said material in which is usually applied by a clipping process, and which is formed an insignia by means of a die apply a coating of a different color indicated by used in the molding operation. I4, and fill in the depression with a material of Fig. 2 is a longitudinal sectional view taken on different color from that of the basic material or line 2-2 of Figure 1, showing the coating maprime coating.

terial applied to the base material and also 10- Another form is to remove theprime coating 25 cated in the depression forming the insignia. from the top of the mass to expose its color and Fig. 3 is a longitudinal sectional View of an ashthen fill in the depression forming the insignia tray having the lettering or insignia which would with a different colored material, thus providing appear in the color of the base material instead a three tone eifect in a flat surface raised above of the color of the coating material. the plane of the bottom of the dish, as will be 30 Fig. 4 is a longitudinal sectional view of a porreadily understood. tion of a dish illustrating the application of two Having thus described my invention I claim as different colors from that of the base material new: which with the use of the base material may 1. The process of forming intaglio colored provide a three color combination. effects in ceramic Ware consisting in molding said My invention provides a process for obtaining Ware to provide a raised mass in a portion thereof intaglio effects, and an article of manufacture and imprinting therein a character such as an in which such effects are embodied and which insignia, coating the said Ware with a material may be obtained at a low cost of manufacture. of a color different from that of the color of the Ill indicates a dish-like receptacle made of basic ceramic material, removing the coating 40 ceramic material and formed with a raised mass from the top surface of said mass before it hardcentral portion II which in this case is shown ens to expose the color of the basic material and as circular in form and fiat on its upper-side. xp s a plane rfa to View in Which said l2 indicates a coating material of a different Character pp 1n gi o effect. color from that of the base material In, and I4 The Process of formlng cameo colored ef- 45 indicates a coating of material having a diifer'ent fects in ceramic consisting in molding said color from either the color of the base material Ware t0 PTOVlde a raised ss In a portion thereof or the first color referred to. and forming therein a raised character in the [3 indicates an insignia which is formed with Original molding operatlon, a ing the ceramic so a die in the molding operation. material W a at h ving a color different After the base material is molded in the usual from that of the mass, removing the color from manner and coated with the prime coating mathe top side of said mass while said coating is in a terial l2, the coating is removed from the top soft condition by scraping it therefrom, then surface of the mass by the use of a flat scraper hardening the mass. I before it becomes hard, and thus exposes the base FREDERICK G. MONTGOMERY. 5a 

